JPS60204492A - Cooling device for high-consistency composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention mainly applies to asphalt and tar.

Compositions such as pitch that are solid or semi-liquid at room temperature (hereinafter referred to as
The present invention relates to a cooling device for lowering the melted and supplied composition to a predetermined temperature when the composition is packaged (referred to as a high consistency composition).

For example, asphalt has traditionally been transported in drums, but each can weighs approximately 2,004 kg, making it inconvenient to handle and requiring time and effort to dispose of the drum cans after use. There is.

As a means to solve these problems, a method of filling asphalt into paper bags or synthetic resin bags (for example,
1-22077, Japanese Patent Publication No. 52-44612) have been proposed.

The present inventors have also proposed a method of cooling and filling a synthetic resin bag mainly made of polyethylene, which has a softening point temperature lower than the temperature at which the high consistency composition becomes fluid at a PIT level. However, (Tokugansho, No. 57-222626),
It is preferable to lower the viscosity or temperature to a level at which the high-consistency composition can be filled even if it collapses. However, high-consistency compositions have poor thermal conductivity (they partially solidify when cooled, and it is extremely difficult to lower the temperature to a uniform temperature throughout the composition).

The present invention has been made in view of the above, and aims to effectively cool a high-temperature, high-consistency composition housed in a cylinder to a predetermined temperature that is approximately uniform inside.
It is equipped with a serpentine pipe for introducing cooling water into the cylindrical body that houses the molten high-temperature, high-consistency composition, and a scraping plate that rubs against the inner surface of the cylindrical body, and its purpose is to rotate these. be.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

In the figure, a cooling device 1 includes a cylindrical body 2 placed approximately horizontally, and a jacket 8 is disposed on the outer periphery of the cylindrical body 2 with a space therebetween, and a jacket 4 for allowing cold water (or hot water) to flow therebetween. A receiving port 5 for supplying a high consistency composition is provided on the upper side of the minus side, and a discharge port 6 is provided on the lower side of the other side. A sliding gate valve 7.8 is attached to each inlet 5 and outlet 6, respectively. Inlet port 5 is gear pump G
via a supply tank T, and the outlet 6 is connected to a high consistency composition injection means A, for example a hopper a.
1. It is composed of a quantitative supply means, an injection nozzle C, etc.

Note that lo is the cooling water inlet for the jacket 4, and 11 is the cooling water inlet for the jacket 4.
is a drain. However, as described later, jacket 4
When hot water is injected into the interior, 11 is a hot water inlet, and 10 is an outlet.

Both ends of the cylindrical body 2 are closed by flanges 12.18, and a rotation @15 is rotatably supported on the axis of the cylindrical body passing through the flange 12.18. 16 is the rotating shaft 15
This is a drive sprocket wheel that is fixed to the drive sprocket wheel and on which the drive chino 17 is suspended.

In addition, 18 indicates a flexible pipe, and a plurality of flexible pipes (6 in the example) 1
8 are arranged at equal intervals on the same circumference, supported by support links 19 provided on the rotating shaft 16, and both ends are attached to both sides of the rotating shaft 15. At both ends of the rotating shaft 15, there are cooling water supply holes 20, which communicate with the flexible pipe 18. Drain holes 21 are drilled, and each is connected to a cooling water supply pipe 24 and a drain pipe 25 via swivel joints 22 and 28 attached to both ends of the rotating shaft.

Each of the above-mentioned flexible pipes 18 is divided into eight parts, for example, and supported by support bars 26 at the divided locations, and each support bar 26 has a plurality of scrapers at its tip that abut against the inner surface of the cylinder body 2. A plate 27 is attached. This scraping board 2
7 is preferably provided with a slight inclination so that the high-consistency composition stored therein can be sent out from the receiving port 5 to the discharge port 6 side during rotation. 80 is a temperature sensor provided at an appropriate location in the cylinder 2 to measure the temperature of the high consistency composition inside the cylinder;
Preferably the central part and both sides 7 flanges 12.1 of the cylinder 2
B (however, the illustrated example shows the central part of the cylinder 2 and one flange 18).
(The figure shows an example of how it is installed.)

In the above configuration, cooling water is made to flow through the corrugated pipe 18 and the jacket 4, and the rotating shaft 15, the corrugated tube 18 connected thereto, and the scraper plate 27 are rotated, and the high temperature is supplied from the receiving port 5 into the cylinder body 2. The high consistency composition is stirred and cooled, and its temperature is detected by a temperature sensor 80. In this case, the composition adhering to the inner surface of the cylinder body 2 is constantly scraped off by the scraping plate 27, and since the corrugated tube 18 is rotated, the composition adhering to the corrugated tube is constantly replaced, and therefore supercooled. The composition will not stick to the inner surface of the cylinder or the flexible tube.

When the temperature of the composition drops to a predetermined temperature, the gate valve 8 provided at the lower discharge port 6 is opened and the composition is supplied to the injection means A.

Similarly, when the apparatus is stopped and restarted, hot water is poured into the jacket 4 and the flexible pipe 18 to heat the remaining composition, reduce its viscosity, and discharge it. If necessary, a heating means (not shown) such as a heater may be provided outside the jacket 4 to heat the jacket 4. Further, the gate valves 7.8 provided at the intake port 5 and the discharge port 6 preferably have a structure with a heater.

As described above, according to the present invention, since the flexible pipe through which the cooling water flows and the scraping plate that rubs the inner surface of the cylinder are rotated, the high consistency composition inside the cylinder is constantly and evenly stirred. Even if the composition has a high consistency and has poor thermal conductivity, it will not cause partial supercooling (the entire interior can be cooled to a uniform predetermined temperature. Therefore, bagging,
In particular, even when a high-consistency composition is packed into a synthetic resin bag whose softening point temperature is lower than the temperature at which the desired fluidity is obtained, the bag is prevented from being damaged by heat, and the composition is Since it has the required fluidity, bagging work can be done easily and reliably.

[Brief explanation of the drawing]

Figure 1 is an overall longitudinal sectional view, Figure 2 is X-X in Figure 1.
It is a sectional view along a line. 100. Cooling device 260. Cylindrical body 15011 rotating shaft 1816. Serpentine pipe 2711. Scraping board

Claims (1)

[Scope of Claims] A rotating shaft is provided in a cylinder housing the molten high-consistency composition, and is located meticulously in the cylinder, and the rotating shaft includes a flexible pipe extending in the longitudinal direction of the cylinder and an inner surface of the cylinder. A cooling device for a high-consistency composition, characterized in that a scraping plate for sliding is attached, cooling water is made to flow through the corrugated tube, and the corrugated tube and the scraping plate are rotated around a rotating shaft. /